Composition for briquets.



To all whom it ma. concern:

UNITED STATESEATENT OFFICE.

JENKINS SHAW, OI TORONTO, ONTARIO, CANADA, ASSIGNOR, BY MESNE ASSIGNMENTS, '.l. O INTEBNATIONALTOOL STEEL COMPANY, LIMITED, TORONTO,

CANADA.

courosr'rron FOR niu'eunrs.

Io Drawing.

Be it known t at I, WILLIAM JENKINS SHAW, of thecity of Toronto, in the county of York, in the Province of Ontario, Canada, have invented certain new and useful Improvementsin Compositions for Briquets, of which the following is the specification.

My invention relates to improvements in v 'a composition for briquets for the reduction or smelting of pulverlzed iron ores, and the object of the invention isto devise a composition for a bri uet, which will facilitate the direct production of steel from iron ore y composed and heat and be ready y soli fy without the" application of artificial for furnace use almost immediately upon being formed,second--- will efliciently flux the materials of which it reduce a thin slab,--'v

-thirdwill'not disintegrate by heat before the iron oxid has been reduced and the metal released,-fourth-c-will cause to be disposed upon the hearth of thereduction furnace a. pours low carbon steel as a base for hlgh car,-

n or alloy steel.

.My invention consists of a briquetcomprising ma etic iron oxid sand, pure verized car on preferably powdered c arcoal, silicate san erablly; carbonate of sodium, which are mixed toget ticu arly explained; 1

To each ofiehundred pounds of magnetlc iron oxid sand or other pulverized iron ore I add 10 to 20 ounds of any pure carbon, preferabl pow er'ed charcoa, combinatlon with the oxygen of the ore, 6 to 10 pounds of silica sand, 10 to 20 ounds of an strong alkali preferably car nate of so iu'm. The foregoing components are mixed dry and then saturated with any adhesive vegetable paste preferably a solution of potato starch in hot water. ThlS paste should be of suificient consistency to render it strongly adhesive. Pure starch 1s referable to any adhesive containing a g uten in which phosphorus is present.

, protectlng it roducing a briquet that-first-will for the purpose specified.

and a caustic alkali pref-- er with a suitable binding medium in -tinousmaterial has been eliminated as and the roportions and as hereinafter more pary p v F f r, the purpose specified.

sufiicient for Patented July 5, 1910.

Such a composition, as I describe, when mixed together, inabout an hour'forms a solid briqluet, which incloses theparticles of the pu verized ore within a pure carbon from the ox gen of the blast and, from. osphorous finnes' when fuel containing t ese impurities is used.

Such a briquet while combusting on the exterior reduces the oxid by radiation of heat within the briquet andat the'same time reserves the integrity of the briquet until ally consumed.

- What Iclaim as my invention is:

1. A briquet comprising magnetic iron oxid sand or pulverized iron ore, powdered carbon, silicate sand and powdered caustic alkali combined with a suitable binding medium. as andfor the purpose specified.

a. A briquet comprismg magnetic iron oxid sand or pulverized iron ore, powdered carbon, silicate sand and powdered caustic alkali combined with starch paste as and 3.'A briquet compris ng one hundred thereabout, six to; tensand or thereabout an ,ten to twenty ned with xastarch paste from which glu- 1 4. A briquet comprising one "hundred pounds of magnetic iron .oxid sand or pulsand or thereabout and ten to twenty pounds or thereabout of such as carbonate ,poundsof magnetic iron oxid sand orpulverized carbon ore or -'thereabout, ten to twenty pounds of powdered charcoal or unds of silicate pcunds or-thereabout of'caustic alkali com- I ,verized carbon ore or thereabout, ten to twenty. pounds of powdered charcoal or thereabout, six' to ten pounds of silicate of sodium combined with a starch paste from which glutinous material has been eliminated as and for the purpose specified.

JENKINS SHAW.

y B. Born,

R. Comm. 

